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题名:
Grafting heteroelement-rich groups on graphene oxide: Tuning polarity and molecular interaction with bio-ionic liquid for enhanced lubrication
作者: Mu, LW; Shi, YJ; Guo, XJ; Zhuang, W; Chen, L; Ji, T; Hua, J; Wang, HY; Zhu, JH
刊名: JOURNAL OF COLLOID AND INTERFACE SCIENCE
出版日期: 2017
卷号: 498, 页码:47-54
关键词: Graphene oxide ; Hetero-element ; Hydrogen bonding ; Lubrication ; Ionic liquids
DOI: 10.1016/j.jcis.2017.03.044
文章类型: 期刊论文
英文摘要: Two different heteroelement-rich molecules have been successfully grafted on graphene oxide (GO) sheets which were then used as lubricant additives in bio-ionic liquid. The grafting was processed with reactions between GO sheets and synthesized heteroelement-rich molecules (Imidazol-1-y1 phosphonic dichloride and 1H-1,2,4-triazol-1-yl phosphonic dichloride, respectively). The modified GO (m-GO) was added into [Choline][Proline] (KIWI) bio-ionic liquid, and has been demonstrated effective additive in promoting lubrication. Different characterization techniques have been utilized to study the reaction between GO and the two modifiers. The effect of molecular structure of the modifiers on the rheological and tribological properties of m-GO/[CH][P] lubricants was systematically investigated. Both theoretical calculation and experimental results demonstrated that the introduced heteroelement-rich groups are beneficial to increase the robustness of lubrication film by intensified hydrogen bonding and enhance the lubricant/friction surface adhesion by increased polarity of the m-GO. As a result, the interfacial lubrication could be significantly improved by these newly developed m-GO/[CH][P] lubricants. (C) 2017 Elsevier Inc. All rights reserved.
收录类别: SCI
语种: 英语
WOS记录号: WOS:000399855600005
ISSN号: 0021-9797
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinap.ac.cn/handle/331007/27335
Appears in Collections:中科院上海应用物理研究所2011-2017年_期刊论文

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Recommended Citation:
Mu, LW,Shi, YJ,Guo, XJ,et al. Grafting heteroelement-rich groups on graphene oxide: Tuning polarity and molecular interaction with bio-ionic liquid for enhanced lubrication[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2017-01-01,498:47-54.
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